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Green Book Nonattainment Areas

Sulfur Dioxide (1971) Nonattainment Areas

As of June 17, 2016
Current and historical design value data can be found at https://www.epa.gov/airtrends/values.html
Areas Listed Alphabetically Designation No. Counties NAA 2010 Population EPA Region State
Armstrong Co, PA Primary 1 4,516 3 PA
East Helena Area (Lewis and Clark Co.), MT Primary, Secondary 1 2,669 8 MT
Hayden (Pinal County), AZ Primary 1 4,844 9 AZ
Laurel Area (Yellowstone County), MT Primary 1 6,525 8 MT
Piti, GU Primary 1 1,000 9 GU
Salt Lake Co, UT Primary, Secondary 1 1,029,655 8 UT
Tanguisson, GU Primary 1 1,000 9 GU
Tooele Co, UT Primary, Secondary 1 58,218 8 UT
Warren Co, NJ Primary, Secondary 1 108,696 2 NJ
9 Total Areas 9 1,217,123  

No. of Counties reflects the number of counties in an area, while the total count only counts a county once and doesn't double count the county if it is in more than area.

Multi-state areas are counted in the nonattainment report until all state areas have been redesignated.

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